| Type | Author(s) | Title | Other Titles | Citation | Citation(alt) | Issue Date |
| bulletin (article) | Hayasaka, Ichirô | A New Permian Species of Porcellia from Japan | - | Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy | 北海道大學理學部紀要 | Mar-1955 |
| bulletin (article) | Hayasaka, Ichirô | Zwei Spezies der Oberkretazischen Kieselschwämme aus Hokkaidô, Japan | - | Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy | 北海道大學理學部紀要 | Mar-1955 |
| bulletin (article) | Hayasaka, Ichirô | Euconospira with Color Marking from the Permian of Japan | - | Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy | 北海道大學理學部紀要 | Mar-1954 |
| bulletin (article) | Hayasaka, Ichirô; Uozumi, Satoru | Molluscan Fauna of the so-called "Momijiyama Transitional Formation" | - | Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy | 北海道大學理學部紀要 | Mar-1954 |
| bulletin (article) | Hayasaka, Ichirô | A Pliocene Mya-bed in Hokkaido : A Paleoecological Note | - | Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy | 北海道大學理學部紀要 | Mar-1953 |
| bulletin (article) | Hayasaka, Ichirô | On the Echinoid called "Sinaechinus Kawaguchii" | - | Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy | 北海道大學理學部紀要 | Mar-1953 |
| bulletin (article) | Hayasaka, Ichirô; Shibata, Matsutarô | A New Tertiary Species of Echinarachnius from Hokkaido | - | Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy | 北海道大學理學部紀要 | Mar-1952 |
| bulletin (article) | Hayasaka, Ichirô; Uozumi, Satoru | On Some Recent and Fossil Brachiopods from Hokkaido | - | Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy | 北海道大學理學部紀要 | Mar-1952 |
| bulletin (article) | Hayasaka, Ichirô; Fukada, Atsuo | On the Ontogeny of Barroisiceras Minimum YABE from the Upper Ammonite Bed in Hokkaidô (Palaeontological Study of Cretaceous Ammonites from Hokkaidô - (I).) | - | Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy | 北海道大學理學部紀要 | Mar-1951 |
| bulletin (article) | Hayasaka, Ichirô; Matsui, Masaru | On Some Gastoropoda from the Momijiyama Formation (Palaeontological Studies of the Tertiary System, Southern Part of the Ishikari-Coal-Field, Hokkaido, 1st Report) | - | Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy | 北海道大學理學部紀要 | Mar-1951 |
